xgboost 0.90 (new formula)

Closes #43246.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/xgboost.rb

@@ -0,0 +1,26 @@
+class Xgboost < Formula
+ desc "Scalable, Portable and Distributed Gradient Boosting Library"
+ homepage "https://xgboost.ai/"
+ url "https://github.com/dmlc/xgboost.git",
+ :tag => "v0.90",
+ :revision => "515f5f5c4779ff5361dcd796e22d55937e1048ea"
+
+ depends_on "cmake" => :build
+
+ def install
+ mkdir "build" do
+ system "cmake", *std_cmake_args, "-DUSE_OPENMP=0", ".."
+ system "make"
+ system "make", "install"
+ end
+ pkgshare.install "demo"
+ end
+
+ test do
+ cp_r (pkgshare/"demo"), testpath
+ cd "demo/data" do
+ cp "../binary_classification/mushroom.conf", "."
+ system "#{bin}/xgboost", "mushroom.conf"
+ end
+ end
+end